分布(bu)于(yu)中國、印度、斯里蘭卡、泰(tai)國、柬埔寨、越南、菲律賓及(ji)大(da)洋(yang)洲;在(zai)中國分布(bu)于(yu)廣西(東興)、廣東(南部及(ji)沿海(hai)各島嶼)和臺(tai)灣(基隆、高(gao)雄、屏東)。多生于(yu)海(hai)陸交錯區的(de)高(gao)潮(chao)帶或超高(gao)潮(chao)帶的(de)鹽堿地(di)上,對土(tu)壤要求不高(gao),在(zai)潮(chao)濕貧瘠的(de)沙礫土(tu)上或潮(chao)溝邊(bian)較(jiao)高(gao)的(de)地(di)方均可生長。喜(xi)光、喜(xi)熱(re),生長速度較(jiao)快。
常綠喬(qiao)木,高2-3米(mi),稀有(you)(you)更高;枝無毛(mao),具多數皮孔。葉(xie)(xie)(xie)互生,厚,近革(ge)質,葉(xie)(xie)(xie)片(pian)橢圓形(xing)(xing)或闊(kuo)橢圓形(xing)(xing),少有(you)(you)卵(luan)狀長(chang)圓形(xing)(xing),長(chang)6-8厘米(mi),寬3-4.2厘米(mi),頂端短尖,尖頭(tou)鈍,基部(bu)鈍圓或闊(kuo)楔形(xing)(xing),邊全(quan)緣或有(you)(you)不(bu)明顯的(de)疏細齒(chi),干時(shi)略背卷(juan),兩(liang)面(mian)均(jun)無毛(mao),腹(fu)面(mian)光滑;中脈(mo)粗(cu)壯,在(zai)腹(fu)面(mian)凹入,背面(mian)顯著凸起,側脈(mo)約10對,纖細,斜伸,離緣2-5毫米(mi)彎(wan)拱連接,網脈(mo)不(bu)明顯;葉(xie)(xie)(xie)柄粗(cu)壯,長(chang)1.5-3厘米(mi),無毛(mao),頂端有(you)(you)2圓形(xing)(xing)的(de)腺體;托葉(xie)(xie)(xie)卵(luan)形(xing)(xing),頂端尖,長(chang)1.5-2毫米(mi)。
花(hua)(hua)(hua)(hua)單性(xing),雌雄(xiong)(xiong)異株(zhu),聚集成(cheng)腋生(sheng)、單生(sheng)或雙生(sheng)的(de)(de)總狀花(hua)(hua)(hua)(hua)序(xu),雄(xiong)(xiong)花(hua)(hua)(hua)(hua)序(xu)長(chang)3-4.5厘米(mi)(mi),雌花(hua)(hua)(hua)(hua)序(xu)較短(duan)(duan)。雄(xiong)(xiong)花(hua)(hua)(hua)(hua):苞(bao)片(pian)闊卵(luan)形(xing),肉(rou)質,長(chang)和寬(kuan)近(jin)相等約(yue)(yue)2毫(hao)(hao)(hao)米(mi)(mi),頂端截平或略(lve)(lve)凸,基部(bu)腹(fu)面(mian)兩(liang)側各具(ju)1腺(xian)體,每一苞(bao)片(pian)內含1朵花(hua)(hua)(hua)(hua);小苞(bao)片(pian)2,披(pi)針(zhen)形(xing),長(chang)約(yue)(yue)2毫(hao)(hao)(hao)米(mi)(mi),寬(kuan)約(yue)(yue)0.6毫(hao)(hao)(hao)米(mi)(mi),基部(bu)兩(liang)側各具(ju)1腺(xian)體;花(hua)(hua)(hua)(hua)梗(geng)(geng)粗(cu)(cu)短(duan)(duan)或近(jin)無(wu)花(hua)(hua)(hua)(hua)梗(geng)(geng);萼(e)片(pian)3,線狀漸尖,長(chang)約(yue)(yue)1.2毫(hao)(hao)(hao)米(mi)(mi);雄(xiong)(xiong)蕊(rui)3枚,常伸出于(yu)萼(e)片(pian)之外(wai);花(hua)(hua)(hua)(hua)絲向(xiang)基部(bu)漸粗(cu)(cu)。雌花(hua)(hua)(hua)(hua);苞(bao)片(pian)和小苞(bao)片(pian)與雄(xiong)(xiong)花(hua)(hua)(hua)(hua)的(de)(de)相同,花(hua)(hua)(hua)(hua)梗(geng)(geng)比雄(xiong)(xiong)花(hua)(hua)(hua)(hua)的(de)(de)略(lve)(lve)長(chang);萼(e)片(pian)闊卵(luan)形(xing)或三角形(xing),頂端尖,基部(bu)稍(shao)連合,長(chang)約(yue)(yue)1.4毫(hao)(hao)(hao)米(mi)(mi),基部(bu)寬(kuan)近(jin)1毫(hao)(hao)(hao)米(mi)(mi);子房卵(luan)形(xing),花(hua)(hua)(hua)(hua)柱3,分離,頂端外(wai)卷。蒴果球形(xing),具(ju)3溝(gou)槽,長(chang)7-8毫(hao)(hao)(hao)米(mi)(mi),寬(kuan)約(yue)(yue)10毫(hao)(hao)(hao)米(mi)(mi);分果爿尖卵(luan)形(xing),頂端具(ju)喙;種(zhong)子球形(xing),直徑約(yue)(yue)4毫(hao)(hao)(hao)米(mi)(mi)。花(hua)(hua)(hua)(hua)果期1-9月。
海(hai)漆栽培時要(yao)選(xuan)擇(ze)合適的造林地和(he)種植時間。苗初植要(yao)適當密植,有利于形成良(liang)好生(sheng)境,提高幼(you)林成活率(lv),采(cai)用(yong)1米×1米的株行距為宜。幼(you)林期應加強管理,林地容(rong)易受其他雜草侵襲,影響生(sheng)長,難于郁(yu)閉成林。
種植初期,要禁止漁民在(zai)幼(you)苗幼(you)樹區的(de)活(huo)動,減少對幼(you)苗幼(you)樹造(zao)成損害。海(hai)漆(qi)枝條柔軟(ruan),匍匐(fu)生(sheng)長地面易受(shou)水浸泡,可用竹子(zi)扶撐,待長大后再獨(du)立生(sheng)長。
采(cai)(cai)種(zhong)(zhong)(zhong)盡可能(neng)在上(shang)半年采(cai)(cai)種(zhong)(zhong)(zhong),以(yi)保證(zheng)種(zhong)(zhong)(zhong)子(zi)(zi)(zi)(zi)質量。新(xin)鮮種(zhong)(zhong)(zhong)子(zi)(zi)(zi)(zi)發芽(ya)率較高,貯藏(zang)時(shi)間越(yue)(yue)長(chang),發芽(ya)率越(yue)(yue)低,種(zhong)(zhong)(zhong)子(zi)(zi)(zi)(zi)隨(sui)采(cai)(cai)隨(sui)播為好(hao)。海(hai)(hai)漆(qi)在育苗(miao)(miao)(miao)中(zhong)最好(hao)采(cai)(cai)用疏松、透(tou)氣性強的(de)基質播種(zhong)(zhong)(zhong)育苗(miao)(miao)(miao)。此外,播種(zhong)(zhong)(zhong)后,用紗(sha)網(wang)蓋住(zhu)苗(miao)(miao)(miao)床(chuang)(chuang)(chuang),以(yi)免(mian)潮(chao)水(shui)或下(xia)雨時(shi)雨水(shui)沖刷種(zhong)(zhong)(zhong)子(zi)(zi)(zi)(zi),也便于澆(jiao)水(shui)。退潮(chao)后及時(shi)用淡水(shui)澆(jiao)苗(miao)(miao)(miao),以(yi)免(mian)泥漿黏附于種(zhong)(zhong)(zhong)子(zi)(zi)(zi)(zi)或苗(miao)(miao)(miao)床(chuang)(chuang)(chuang)表面,影響種(zhong)(zhong)(zhong)子(zi)(zi)(zi)(zi)和(he)(he)苗(miao)(miao)(miao)床(chuang)(chuang)(chuang)的(de)透(tou)氣性。溫度越(yue)(yue)高,海(hai)(hai)漆(qi)幼苗(miao)(miao)(miao)生(sheng)長(chang)越(yue)(yue)快,低溫和(he)(he)高鹽度均能(neng)制約苗(miao)(miao)(miao)木(mu)(mu)生(sheng)長(chang)。在育苗(miao)(miao)(miao)過(guo)程中(zhong),應(ying)根據實際情況,加(jia)強水(shui)肥管(guan)理,保證(zheng)土壤含(han)水(shui)量和(he)(he)土壤水(shui)分較低的(de)含(han)鹽量,提高苗(miao)(miao)(miao)木(mu)(mu)生(sheng)長(chang)量。
海漆(qi)具有速生(sheng)、抗逆性強等特(te)點,對防(fang)風固岸(an)有顯著效(xiao)果,是海濱高潮(chao)位地帶(dai)和河道的護岸(an)樹。中國東(dong)南沿海大面積營造(zao)紅樹林的重要樹種,可用于沿海生(sheng)態景(jing)觀林種植。